We report on the resonant Fabry Perot cavity of the PVLAS (Polarization of the Vacuum with LASer) experiment operating at $lambda = 1064$ nm with a record decay time of 2.7 ms, a factor more than two larger than any previously reported optical resonator. This corresponds to a coherence length of $8.1cdot10^5$ m. The cavity length is 3.303 m, and the resulting finesse is 770 000.
DELLA VALLE, F., Milotti, E., Ejlli, A., Gastaldi, U., Messineo, G., Piemontese, L., et al. (2014). Extremely long decay time optical cavity. OPTICS EXPRESS, 22(10), 11570-11577 [10.1364/OE.22.011570].
Extremely long decay time optical cavity
DELLA VALLE, FEDERICO;
2014-01-01
Abstract
We report on the resonant Fabry Perot cavity of the PVLAS (Polarization of the Vacuum with LASer) experiment operating at $lambda = 1064$ nm with a record decay time of 2.7 ms, a factor more than two larger than any previously reported optical resonator. This corresponds to a coherence length of $8.1cdot10^5$ m. The cavity length is 3.303 m, and the resulting finesse is 770 000.
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https://hdl.handle.net/11365/1035065